Don’t read out loud. Develop an internal voice that you can hear as you read. You can also purchase transparent overlays of different colors that make each line of text you read a different color this helps the brain to separate them out as you go. Research is showing some benefit in that.I looked up ADHD. It seems it can include many symptoms such as being inattentive, distracted, trouble being still, trouble concentrating and focusing just to name a few. Also, I read that a diagnosis should include looking at the brain as well as the body. I think dyslexia is a symptom as well which I have always thought I have. When reading a book, my mind wanders as I read the words. I find it helpful to at least mouth the words as I read them or read out loud. I have to read technical stuff at least 3 times. Writing, however, is not a problem for me for some reason.